首页|Recent progress in CdS-based S-scheme photocatalysts
Recent progress in CdS-based S-scheme photocatalysts
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Photocatalytic technology with sunlight as driving force can convert solar energy into other energy sources for storage and further use.Cadmium sulfide(CdS),as a typical reducing semiconductor of metal sulfides,represents an interesting research hotspot in photocatalysis due to its suitable bandgap(2.4 eV)for utilizing visible light and strong reducing ability for inducing surface catalytic reactions.Unfortunately,the photocatalytic performance of CdS is still limited by its fast carrier recombination and serious pho-tocorrosion.So far,CdS semiconductor has been widely developed as a typical reducing photocatalyst in constructing novel S-scheme heterojunction to overcome the above drawbacks.In this review,the de-sign concepts,basic principles,and charge transfer characteristics of CdS-based S-scheme heterojunction photocatalysts have been comprehensively introduced.Several advanced and effective characterization methods for studying the mechanism of CdS-based S-scheme heterojunction are analyzed in detail.Fur-thermore,we also summarize the typical applications of CdS-based S-scheme heterojunctions for water splitting,CO2 reduction,pollutant degradation,etc.Eventually,according to the current investigation sta-tus,some drawbacks in the current synthetic strategy,mechanism exploration,and application prospect of CdS-based S-scheme heterojunction are proposed,which need to be addressed by further expansion and innovative research.
College of Environmental and Chemical Engineering,Xi'an Polytechnic University,Xi'an 710048,China
Jilin Provincial Key Laboratory of Advanced Energy Materials,Department of Chemistry,Northeast Normal University,Changchun 130024,China
Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission,Key Laboratory of Photosensitive Materials and Devices of Liaoning Province,School of Physics and Materials Engineering,Dalian Minzu University,Dalian 116600,China
National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaShaanxi Provincial Key Research and Development ProgramScientific Research Program Funded by Shaanxi Provincial Education Department
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